I find that all of my other eye liner pencils are fine for editorial work, shows etc but sometimes I need a little more staying power - like for a music video, when the day is much longer, there might be much more sweat from dancer, lots more chance of movement....so in times like these I need waterproof long lasting pencils.
Urban Decay do a great selection of colours and they really do stay put.
They also carry a whole line of waterproof liquid liners which, again are great, a wide variety of colours with great staying power.
Well done Urban Decay, I'm a fan!
Love Le Riche x